Compressed-air tank having interchangeable paint containers



1,538,371 w. c. BEACH COMPRESSED AIR TANK HAVING INTERCHANGEABLE PAINTCONTAINERS Filed'oct. 21, 1922 23 20 a 18 25 19 1 25 52 .16 H I UH mm Ias i ll 2a I .54 23 g 29 l6 1 r: \IZZ- 15 I 20 ,J' 3 l] 22 j a 1 E: \k

. El I H HI J 15 5Q I] 27 26 8? ATTORNEY Patented May 19, 1925.

UNITED STATES PATENT OFFICE.

C. BEACH, OF NEWARK, NEW JERSEY.

COMPRESSED-AIR. TANK HAVING INTERCHANGEAIBLE PAINT CONTAINERS.

Application filed October 21, 1922. Serial No. 595,915. I

, The main purpose of this invention is to providea tank, as used incombination with devices for spra ing paint under air pres-t sure, witha purality of containers for paint or the like of different colors orkinds,

whereby one container may be exchanged for another in a rapid and easymanner.

Another object is to so arrange the paint containers as to avoid havingthe paint come in contact withthe walls of the tank, which act merelyasa receptacle for the compressed air and are thus at all times whollyfree of 'the paint.

A further object is in the provision of paint containing cans providedwith handles accessible from their interiors and having spaced from thewall of the tank and low its up r edge.

ese objects are accomplished by the novel construction and arrangementof parts herein described, hereafter claimed, and

shown in the annexed drawing, in which Figure 1 is a plan view of, thepreferred embodiment of tank and container, parts being broken away toshow the construction.

Figure 2 is a partial side elevational, partial sectional view of thesame.

As shown in the drawing the tank- 10 is plainly cylindrical, its tubularwall being cut-squarely across at its ends in the lower of which issecured a flanged ring 11 formed with the concave bottom 12, the flangebeis a heavy beadin 15, re-enforcing its open upper end and be ow thehead are a plural- Y ity of forked lugs 16 rigidly attached to the wallof the tank in uniform spaced relaing held within the cylinder to forman impervious joint by rivets 13 or analogous means as preferred.

Circumpcent the upper edge of the tank tion by rivets 17 or otherwiseas. may be preferred.

A pair of outstanding loop handles .18 are secured on opposite sides ofthe tank, above the center of its length, for convenience in carryingthe same.

Pivoted between each pair forks-e1:-

tending from the lugs 16, on removable pins 19, are the enlarged andflattened ends 20 of bolts 21, their screw-threaded portions 22beingprovided with nuts 23, saidbolts being sufiiciently long to extenover a cover plate (not shown) and secure the closure to the tank.

All of these several parts are hot-dipped galvanized to prevent rusting,discoloration of paints and deterioration and the tank is straight sidedand fully open at the top for filling and cleaning.

The interchangeable containers or cans 25 are made of lighter material,havin toms 26 flanged to extend as a band 2 over the lower edge of thecan and have a re: enforcing band 28 at the top,'over which may beengaged a cover 29 its downturned flange 30 loosely fitting over there-enforced edge.

A bail 31 made of a single thick strand of wire, is bent into asemi-circle, its ends 32 extended horizontally outward to pass throughthe wall of the cam and then may.

be upset, as at 33 to prev nt inadvertent displacement.

Adjacent one of the bail ends 32, on each side thereof, are fixed studsor rivets 34 their function being to act as su for the bail when turnedhorizonta y in either direction and prevent it from entering the paintimmediately below.

This arrangement presents several advantages, one of which is the easyexchange of the can for another having contents of different material,color, density, etc., the bail always being readily accessible and soarranged that the hands need not be soiled in exchanging the cans.

It is also to be noted that the interior of the tank is at all timesfree from the material to be dispensed and that the air spaceintervening between the can and tank acts botports withstand internalpressure, said tank having a closed concave bottom and being open at thetop, a plurality of cover securing means adjacent the upper edge of saidtank, handles fixed on opposite sides of said tank, interchangeablepaint containing means spaced concentrically within the tank, a bandcircumjacent the lower edge of said paint containing means adapted torest upon the bottom of said tank, said band being flanged upward fromthe bottom element, semi-circularly bent means forming a bail r and ameans fixed in the wall of said tank and extending into the paintcontaining means, adapted to support said bail when resting horizontallythereon, and a cover loosely fitting over said paint containing meansbelow the plane of the upper edge of said tank.

2. In an apparatus for spraying paint under pressure, a cylindrical tankadapted to Withstand internal pressure, said tank having a closedconcave bottom and being open at the top, a plurality of outstandingforked lugs adjacent the upper edge of sald tank,

of said tank, a paint container spaced concentrically within the tank, aband circumjacent the lower edge of said container adapted to rest uponthe bottom of said tank, said band being flanged upward from the bottomelement, a semi-circularly bent rod forming a bail for the container,pintles extending outwardly from the ends of said bail pivoted in thecontainer wall, stops fixed in the wall extending into the container,said stops being adapted to support said bail when resting horizontallythereon, and a cover loosely fitting over said container bekfIW theplane of the upper edge of said tan This specification signed andwitnessed this 8th day of September, 1922.

WILLARD C. BEACH.

Witnesses:

FREDK G. Freeman, FERDINAND Now.

